For over a century, the ocean has been the ultimate refuge for those who wished to disappear. From the U-boats of the first world war to the nuclear-powered leviathans that glide through today’s deep waters, the submarine has thrived on one simple principle: stealth.For over a century, the ocean has been the ultimate refuge for those who wished to disappear. From the U-boats of the first world war to the nuclear-powered leviathans that glide through today’s deep waters, the submarine has thrived on one simple principle: stealth.Automotive[#item_full_content]